What happens to force if distance doubles? (Look at Rule of 1's notes)

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What happens to force if one charge is halved? (Look at rule of 1's notes)

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You rub some wool on two balloons. The electrons from the wool moved onto the balloons. What kind of charge do the balloons have now?

If both of the balloons now have a negative charge, the balloons will

Two balloons that both have a charge of (−1.6 × 10⁻¹⁹ C) are 0.10 m apart. What is the electrostatic force?

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k=8.9x10⁹

Stanley is driving a car from work and another car hits him head-on. Which action reduces impact force in a crash?

Stanley weighs 30 kg and slows down from 10 m/s to 5 m/s. What is the impulse?

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